Antifriction roller means for plungers
US5244284A · kind A · utility
4Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1991 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Nov 22, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C29/045
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A plunger has a perimeter for spaced cooperation with a guide bore along a reciprocation axis. For alleviating lateral thrust friction between the plunger perimeter and guide bore, antifriction roller structure has an axle with journals engaged in radius bearings on axis transverse to the reciprocation axis of the plunger. Mounting of the antifriction roller structure is such that annular wheel surfaces on the roller effect rolling engagement with the guide bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.